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Extract from the Register of European Patents

EP About this file: EP0629581

EP0629581 - Process for the production of TIO2 from TIO2 process residues [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  13.02.1998
Database last updated on 03.09.2024
Most recent event   Tooltip13.02.1998No opposition filed within time limitpublished on 01.04.1998 [1998/14]
Applicant(s)For all designated states
METALLGESELLSCHAFT AG
Bockenheimer Landstrasse 73-77
60323 Frankfurt am Main / DE
[N/P]
Former [1994/51]For all designated states
METALLGESELLSCHAFT AG
Reuterweg 14
D-60323 Frankfurt am Main / DE
Inventor(s)01 / Amirzadeh-Asl, Djamschid, Dr.
Tervoortstrasse 8
D-47445 Moers / DE
[1997/15]
Former [1994/51]01 / Amirzadeh-Asl, Djmaschid, Dr.
Tervoortstrasse 8
D-47445 Moers / DE
Application number, filing date94201460.624.05.1994
[1994/51]
Priority number, dateDE1993431812601.06.1993         Original published format: DE 4318126
[1994/51]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0629581
Date:21.12.1994
Language:DE
[1994/51]
Type: B1 Patent specification 
No.:EP0629581
Date:09.04.1997
Language:DE
[1997/15]
Search report(s)(Supplementary) European search report - dispatched on:EP05.10.1994
ClassificationIPC:C01G23/053
[1994/51]
CPC:
C01G23/0532 (EP); C22B34/125 (EP); C01P2002/72 (EP);
Y02P10/20 (EP)
Designated contracting statesDE,   ES,   FR,   GB,   IT,   NL [1994/51]
TitleGerman:Verfahren zur Gewinnung von TiO2 aus dem Rückstand der TiO2-Herstellung[1997/15]
English:Process for the production of TIO2 from TIO2 process residues[1994/51]
French:Procédé d'obtention de TIO2 à partir des résidus de la fabrication de TIO2[1994/51]
Former [1994/51]Verfahrenzur Gewinnung von TiO2 aus dem Rückstand der TiO2-Herstellung
Examination procedure03.02.1995Examination requested  [1995/14]
20.11.1995Despatch of a communication from the examining division (Time limit: M04)
30.05.1996Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time
19.06.1996Reply to a communication from the examining division
19.09.1996Despatch of communication of intention to grant (Approval: Yes)
07.10.1996Communication of intention to grant the patent
08.11.1996Fee for grant paid
08.11.1996Fee for publishing/printing paid
Opposition(s)10.01.1998No opposition filed within time limit [1998/14]
Request for further processing for:19.06.1996Request for further processing filed
19.06.1996Full payment received (date of receipt of payment)
Request granted
02.08.1996Decision despatched
Fees paidRenewal fee
28.03.1996Renewal fee patent year 03
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Documents cited:Search[A]EP0475104  (BAYER AG [DE]) [A] 1 * claim 1 *;
 [D]DE4027105  (BAYER AG [DE]);
 [A]EP0031064  (BAYER AG [DE]) [A] 1 * claim 1 *;
 [A]US2850357  (MYERS MYRON L, et al) [A] 1 * claim 1 *;
 [A]JPS5241197
 [A]  - DATABASE WPI, 1, Derwent World Patents Index, vol. 77, no. 19, Database accession no. 77-33702Y, & JPS5241197 A 19770330 (TONG I) [A] 1 * abstract *
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.